Back to EveryPatent.com
United States Patent | 5,293,854 |
Tracy ,   et al. | March 15, 1994 |
The present invention provides a very simple structure to delay high fuel delivery to a turbocharged engine until a sufficient turbocharger boost pressure is available for adequate combustion, by providing a simple dashpot to limit movement of the throttle shaft. A brea-away throttle lever is used so that the operator can position the control lever at any position, even though the position of the throttle shaft itself is being limited by the dashpot. Preferably, the damping structure is entirely housed within the fuel injector pump, where it will be safe from debris, and constantly flushed with clean fuel.
Inventors: | Tracy; Lawrence P. (Hudson, IA); Norton; Richard G. (Hudson, IA) |
Assignee: | Deere & Company (Moline, IL) |
Appl. No.: | 062669 |
Filed: | May 14, 1993 |
Current U.S. Class: | 123/370; 123/385 |
Intern'l Class: | F02D 031/00 |
Field of Search: | 123/370,371,381,378,377,376,388,385,387,382,383 |
2177120 | Oct., 1939 | Schaeren | 123/387. |
2571571 | Oct., 1951 | Hanners | 123/370. |
2708921 | May., 1955 | Links | 123/385. |
3685501 | Aug., 1972 | Honda | 123/378. |
4176642 | Dec., 1979 | Shipinski | 123/381. |
4200075 | Apr., 1980 | Takahashi | 123/385. |
4328777 | May., 1982 | Yasohara | 123/370. |
4368706 | Jan., 1983 | Yasohara | 123/370. |
4567870 | Feb., 1986 | Tumber | 123/370. |
4664079 | May., 1987 | Sakuranaka | 123/370. |
4972819 | Nov., 1990 | Engfer | 123/370. |